<template>

       <el-container class='home_cont'>
        <el-header>
             <div>
                 <img  />
                 <span>OMS全渠道</span>
             </div>
             <el-button type="primary" @click="logout">退出登录</el-button>
        </el-header>



        <el-container>
    <el-aside width="200px">
         <el-menu
                background-color="#5576BD"
                text-color="#fff"
                active-text-color="#ffd04b" 
                unique-opened
                :collapse="isCollapse" 
                router
                :default-active="activePath">
                
          <!-- 一级菜单 -->
      <el-submenu :index="item.id + ''" v-for="item in menulist" :key="item.id">
        <!-- 一级菜单的模板区域 -->
            <template slot="title">
              <!-- 图标 -->
              <i :class="iconsObj[item.id]"></i>
              <!-- 文本 -->
              <span>{{item.authName}}</span>
            </template>
            <!-- 二级菜单 -->
            <el-menu-item :index="'/' + subItem.path" v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/' + subItem.path)">
              <template slot="title">
                <!-- 图标 -->
                <i class="el-icon-menu"></i>
                <!-- 文本 -->
                <span>{{subItem.authName}}</span>
              </template>
            </el-menu-item>
        
      </el-submenu>
    </el-menu>

      </el-aside>

            <el-main>
                <router-view></router-view>
            </el-main>
        </el-container>


</el-container>

    
</template>

<script>
    export default {
          data() {
    return {
      // 左侧菜单数据
            menulist: [],
            iconsObj: {
                '125': 'iconfont icon-user',
                '103': 'iconfont icon-tijikongjian',
                '101': 'iconfont icon-shangpin',
                '102': 'iconfont icon-danju',
                '145': 'iconfont icon-baobiao'
            },
      // 是否折叠
      isCollapse: false,
      // 被激活的链接地址
      activePath: ''
    }
  },
        //创建周期函数-渲染菜单
          created() {
            this.getMenuList()
            this.activePath = window.sessionStorage.getItem('activePath');
        },
        methods:{
            logout() {
                window.sessionStorage.clear();
                this.$router.push('/login');
            },

           // 获取所有的菜单
          async getMenuList() {
            const { data: res } = await this.$http.get('menus')
            if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
            this.menulist = res.data
           // console.log(res)
            },

         // 保存链接的激活状态
        saveNavState(activePath) {
        window.sessionStorage.setItem('activePath', activePath)
        this.activePath = activePath
    }
        }
        
    }
</script>

<style  scoped>
.home_cont {
    height: 100%;
}
.el-header {
    background-color: #5576BD;
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    font-size: 20px;
}

 .el-aside  {
     background-color: #5576BD;
  }
  .el-menu {
    border-right: none;

  }
  .iconfont {
  margin-right: 10px;
}


.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}

</style>